External Torx, Internal Torx, External Hex, TX, Hex
Torx, AF, Imperial, Metric, SAE
9 mm, 3/16 ", 7 mm, 5/8 ", 11/16 "
1-1/2, 3/8, 2-1/2, 1/2, 3/4
19.05, 9.53, 6.35, 25.4, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide